3 years ago

The function f(x)=3x^3+x^2+2x rises as x grows very large. A. True B. False

Mathematics

1 answer:

Alja [10]3 years ago

4 0

True I’m pretty sure

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Estimate the line of best fit using two points on the line 100 90 80 70 (e, 80) 60 30 20 10 (2.20) 10 O A. y= 2x O B. y = 2x+10

nexus9112 [7]

Answer:

$y = 10x$

Step-by-step explanation:

Given

The attached plot

Required

The line of the best fit using $(8,80)$ and $(2,20)$

We have:

$(x_1,y_1) = (8,80)$

$(x_2,y_2) = (2,20)$

Calculate slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{20 - 80}{2- 8}$

$m = \frac{-60}{-6}$

$m = 10$

The equation is then calculated using:

$y = m(x - x_1) + y_1$

$y = 10(x - 8) + 80$

Expand

$y = 10x - 80 + 80$

$y = 10x$

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3 years ago

Which line is a linear model for the data?

Lisa [10]

The first one
this is random stuff to fill up the 20 character minimum

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2 years ago

Read 2 more answers

Please can someone help me answer the question in the picture

Firdavs [7]

(X+3)(x+7) X+7
————— = ——
(X-3)(x+3) X-3

7 0

2 years ago

What is the value of the discriminant? 2K2 = 10k - 2

Phoenix [80]

Answer:

Step-by-step explanation:

Given a quadratic equation in standard form, ax² + bx + c = 0 : a ≠ 0

Then the discriminant is Δ = b² - 4ac

2k² = 10k - 2 ( subtract 10k - 2 from both sides )

2k² - 10k + 2 = 0 ← in standard form

with a = 2, b = - 10 and c = 2, thus

b² - 4ac = (- 10)² - (4 × 2 × 2) = 100 - 16 = 84

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2 years ago

Can you turn these inequalities into y=mx+b form? y> 3x-6 4x-y<7

kaheart [24]

I am not sure but wouldn't it be y=3x-6 and y=4x-7

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3 years ago